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Grade SCr445
Corresponding Standard JIS G 4053-2003
Alloy steel plate for machinery
Classification Alloy Steel
SCr445 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.43 0.15 0.6 - - 0.9 - - 0.15
Maximum Value 0.48 0.35 0.9 0.03 0.03 1.2 0.25 0.3 0.3
New and Old Grade Replacement List
Corresponding Standard Grade
JIS G 4104-1979
Grade
Old Grade
JIS G 4053-2003
Grade
JIS G 4053-2016
Grade
1 Approximate Comparison Table structural alloy steel
China Taiwan, China Japan South Korea United States France European Standard Russia
GB ISC CNS JIS KS ASTM/AISI UNS NF EN/NF EN GOST
45Cr A20452 SCr445 SCr445 SCr445 5145 G51450 45C4 41Cr4 45Х
2 Approximate Comparison Table structural alloy steel
China Japan United States France Russia
GB ISC JIS ASTM/AISI UNS NF EN/NF GOST
50Cr A20502 SCr445 5150 G51500 50C4 50Х
SCr445 Corresponding Standards(Same grade name, different standards)
1 JIS G 4053-2003
SCr445
2 JIS G 4053-2016
SCr445
3 JIS G 4104-1979
SCr445 (SCr 5)

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